Railway signal system.



PATE-NTED MAY 26, 1908.

B.E. GABBART, RAILWAY SIGNAL SYSTEM.

APPLI nxrnn .16

9 I 5 MT 1907 aSHEBTSeSHEEr 1.

Wit" use:

attorney E. E. GABBART.

PATENTED MAY 26, 1908.

RAILWAY SIGNAL SYSTEM.

APPLICATION I'ILED 001216. 1907..

we tn eases 3 SHEETS-SHEET 2.

Svwcntoz 1 PATENTED MAY 26, .1908. E. E. GABBART.

RAILWAY SIGNAL SYSTEM. APPLICATION FILED 001216. 1907.

a SHEETS-SHEET 3 Fig.5.

a tfoznogd- 25 tion of there-d1- .10 heretofore mentioned.- -,Eixed.to thisheadBO-is a tongue 32 which, when the arm-31 is swungdownwardly' upon .56 sage of the flanges of the carwheels therebethecurve is occupied; "The: circiiit clgis'ing d r-prddueing the result statedabove now be described? r I tione'd above comprises a casing moludmg' sides 23, atop 24, a closed end 25 and an open end 26, which latter end'is presented' 1n thedirection of the outer rail of-the track curve," Arranged within-thiscasf is a pair '10 a .catedbythe numeral 27 and the otherby theofleaf isprin'g contacts one of whic is indinumeral, 28 and leading into the casing, beneath the-rail, are the wires, in-one instance 15* and and theflother-instance 16 and 19, the Twiresf- 15 *and 16 being connected to the contacts 27 of the respective. circuit closef andthe' wires 2() and 19 to the contacts a 28. of the respective circuit closersfit-zbeing understood, of course, that these contacts 27 and 2'8 arenormally spaced by reason of their resiliency. l Pivoted asst-29 1n the casing 1nwardlyfof: the contacts 27- and 28 is ahead 30 formed-at theinner end of.-an arm 31 which- ,arm" ,rojects through. the upper portion. of the 0 en end'of the casing andin' the direcits pivot, engages thei-upperfcontact, 27 and presses the same into engagement with the normall held raised by-means of a-leaf spring is secm'edv at its lower end at the Y lower edge of theo en end of thecasing and extends .u wardIy eneath the'saidarm 31. In order. that the arm ma be moved downwardly'asiabovestated to ring the two con.- tacts .27 and2'8'in mutual e agement, I haveprovlided a device beneat which the outer endof-the armextends and which is des' ed operated by; the passage of the w eelsjofd trmn.;, device isin the form ofa plate 34iwhich is which-is receivedbetween a pair of eyes 36 fonhednppn' theweh ofthe rail 1'0, there be ing pivot' oltsengaged through thesaid sets of eyes:-;-l ln this manner the plate 34 is mounted to swing with its upper edge 'away from thertre'ad'of the rail at the time of 'pastween-and the said tread of the rail-', the'end v o'rtionsof-the plate being curved outwardly tongue 38 is formed inte al with the inner our the rail as at'37 to admit of the ready receptiortof the saidwheel flanges. A

' side of. the plate 34 and t tongue projects over the. arm, 31 it -being understood, that when the plate 34'is swnngupon its hinges in the manner stated above; thetongue 38 will .45 age with the arm 31 and depressthe same t eby br' thecontact 27 into engagement, with t e contact 28; In order thattfi gpl jt 34rmy its no'ri mal position after the passage'of each wheel rovided upon its end end with aneye v rods 39 are secured attheir lower ends to the corresponding base flanges of the rail and extend upwardly therefrom and at their upper ends throu h U-shaped loops 40 formedupon the said p ate 34 and v projecting inwardly therefrom. Springs 41 are engaged upon the rods 39 and it is against the upper ends of these springs that the loops 40 bear, it be' understood that thesprings have a norma tendency to expand and toreturn the plate 34 to its norma position-as stated.

While it is true that the circuit is rapidly made and broken at the time of passage of each wheelrbetween the plate 34 andthe tread of the wheel, the wheels of course ass in such rapid'succe'ssion that ractical y a continual hght will be dis laye at the other end of the curve. Shou d the curve be a 'very long one I have found it expedient to employ several of the circuit closing devices which are disposed within fifty yards or so of each-other and when this is done taps are taken bothfromthe main supply we and the'cgrreponding wire 19 and 20 as the case n.Fi and 70f thedrawingsl have shown t e application of my railway signal to agrailroad crossing'and in Fig. 6 one of the tracks, for example the south bound track,-

is indicatedby the numeral 43 and the other track which is either east or west bound is inone r'pf the tracks however; as

tracks 43 and 44 and a lamp 4-7 is located ad j acent the'point of intersection of'the tracks and with its red bulls eye presented in the direction of a train ap roachirigon the south bound track. The wlre 46-leads toone contact of the circuit closing device constructed as heretofore explained which device is indicated by the numeral 48. and is located beside one of the rails of the track 44 and leading to the other contact of this circuit closer 48 1s a wire 49 which wire leads also to the lam 47, there being a wire 50 leading from the' amp to ground. A similar circuit closer 51' is 10- cated adjacent one of the rails of the-track\43 but to the other side of the point of intersec 1 tion of the tracks 43 and 44 and leading was circuit closer is a wire 52 whichis-tapped to the main supply landzalsoa 'wire 53. which leads to the lamp 56. A wire 57*is-tappedto the main'supply and loads to one-contact of a; circuit closer-55 located in o erative relation to one of the rails ofthetrac I43 vand leading from the othe onta t ftlii fs wq ta to;

1. A circuit closer for a railway signal system comprising, in combination with a rail, a casing disposed adjacent the rail, contacts within the casing, a movable member supported within the casing and having a'portion v engageable with one of said contacts for moving it into engagement with the other c0n- 'tact and having an arm extendingoutwardly of the casing, a plate hinged at its lower edge to the rail and adapted to be spread therefrom by the passage of a car wheel, and a tongue upon the plate, which tongue overlies the arm.

2. A circuit closer for a railway signal sys tem comprising, in combination with a rail, a

casing disposed. adjacent the rail, contacts within the casing, amovable member supported within the casing and having a portion engageable with one of said contacts for moving it into engagement with the other contact and having an arm extending outwardly of the casing, a plate hinged at its .lower edge to the rail and adapted to be spread therefrom by thepassage of a car wheel, a tongue upon the plate, which tongue overlies the arm, and means for holding the plate to normal'position. I

3. A circuit closer for a railway signal system comprising, in combination with a rail, a. casing disposed adjacent the rail, contacts within the casing, an arm pivoted within the casing and extending outwardly therefrom in the directionof the rail, a tongue carried by the arm and engageable with one of said contacts for moving it into engagement with the other contact, a plate hinged at its lower edge to the rail and adapted to be spread therefrom by the assage of a car wheel, a tongue upon the p ate overlying the free end of said arm, and means for holding the plate to normal position.' i

In testimony whereof, I aflix my signature, in presence of two witnesses.

ELIHU E. GABBART.

V'Vitnesses ALFRED H. WILLBERN, GEO. C. BUOZEALL. 

